Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand on the cooling system. The rear cylinders suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the system, especially the rear of the block and possibly blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. We?ve designed our coolant bypass kit with a secondary thermostat, that unlike other brands, works based on temperature instead of excessive pressure. This solves the problem before pressure becomes an issue by ensuring consistent temperatures across all six cylinders. Our kit comes with high quality AN o-ring fittings and AN hose connections with braided hose to ensure a leak free installation.
Professional packing and fast shipping
We provide a variety of shipping options thanks to our long-running partnerships with UPS, FedEx and DHL. Our warehouse staff are extremely skilled and will package your items according to our precise and precise specifications. Before they are shipped your items will be thoroughly inspected and secured. Every day, we send thousands of packages to customers from all over the world. This is a testament to our commitment to be the largest online retailer globally. The distribution centers and warehouses distribution are situated in Europe and the USA.
Orders that contain more than 1 item are given processing time according to each item.
Prior to shipping, we examine the items ordered thoroughly. The majority of orders are delivered within 48 hours. The delivery time should be between 3-7 working days.
Returns
The stock market is always changing. It's not entirely managed by us, since we are involved with multiple organizations, such as the factory and our storage. The actual inventory can change at any moment. It's possible that the inventory could run out once your order has been processed.
Our policy lasts for thirty days. If it's been longer than 30 days since you bought the item, we unfortunately can't give you a complete refund or exchange.
You are able to return a product in the event that it is not used and still in the same condition as the day you received it. The item should be in the original packaging.
Related products
Fuel Pump Parts
Fuel Filter
Fuel Pump Parts
Turbo Accessories
Engine Parts
Fleece Performance 07.5-22 Dodge 2500/3500 Cummins 6in Temperature Sensor Pigtail Fleece Performance
Fuel Pump Parts
Engine Parts
Engine Parts
Fleece Performance 10-20 Dodge 2500/3500 Cummins 6in Multiuse Sensor Pigtail 3 Fleece Performance
Dual Fueler Kit
Fleece Performance 03-07 Dodge 2500-3500 5.9L Cummins Dual Pump Kit Fleece Performance
Fuel Pump Parts
Fuel Filter
Fleece Performance 07.5-09 Dodge 6.7L Cummins 3rd Gen Fuel Filter Delete Fleece Performance
Fuel System
Engine Parts
Exhaust Manifold
coolant bypass
Fleece Performance 03-07 Dodge 5.9L Cummins Coolant Bypass Kit (03-05 Auto Trans) Fleece Performance
Transmission
1719 CHEVY/GMC 6.6L DURAMAX LML HEAVY DUTY REPLACEMENT TRANSMISSION COOLER LINES Fleece Performance
